Question

Using fermi dirag equation prove that the height of potential barier is directly propotional to temprature

Answer 1

Absorbance(at 228 nm) of a solution of benzonitrile in ethanol is what 1.3 molar absorptivityA policeman starts to chase a thief who has 100 meters head start. If the policeman can manage to run a kilometer in 8 minutes, You throw a fair dice with six distinct sides three times and observe the outcomes. What is the entropy of this event in the unit of bits? (you may try using both the shannon formula for the non-uniform case and the hartley formula for the uniform case and verify that they are equal.) the thief a kilometer in 10 minutes, Using fermi dirag equation prove that the height of potential barier is directly propotional to temprature far will the thief have gone before he is caught by the policeman?Explain photosensitized reaction with example and give its mechanismWhy should management periodically review its purchasing policies and procedures?

Answer 2

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Photosensitized reactions are photochemical reactions in the presence of sensitizers. The function of a sensitizer is to transfer energy or to participate in photochemical reactions to form a radical, which then reacts with reactants and converts back to the sensitizer. In many inorganic photochemical reactions, mercury is a common sensitizer. Upon light irradiation, mercury is excited and becomes excited mercury. The excited mercury collides with reactant molecules and transfers the energy to the reactant molecules to make them more reactive.

2B2H6 + Hg(3P1) → B4H10 + H2

2SiH4 + Hg(3P1) → Si2H6 + H2

2GeH4 + Hg(3P1) → Ge2H6 + H2



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